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Earnings Per Share (Details) - shares
3 Months Ended 6 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
Stock options        
Earnings Per Share        
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 939 0 939 0
Treasury stock method        
Earnings Per Share        
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 460,304 360,030 459,028 510,795
PSU and RSU        
Earnings Per Share        
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 90,020 92,873 88,237 92,873